Buzz Aldrin has reportedly admitted that Dancing With The Stars has been "harder" than he imagined it would be.

The former astronaut, 80, is one of ten celebrities still competing to win the Mirror Ball trophy in the ABC competition's tenth season.

Speaking to Zap2It, he said: "It been quite a bit harder than I thought it would be. I'm glad it's a taxing challenge, and I'm very glad to have passed that first milestone."

Advertisement - Continue Reading Below

The star, who is partnered with Ashly Costa, had scored 12 out of a possible 30 points for his foxtrot last week, and performed the waltz on last night's episode.

"About all I can do is hope for the best. I hope, because that's the reason I got involved in this," he continued. "When people see my name out there... they'll be reminded of the wonderful success of the Apollo program we had 40 years ago."